Feat/core create post (#234)

* extract common tasks aliases * feat: schema and migration created * feat: schema and migration finished * fix: format * fix: migration errors * fix: fixing id in posts table * fix: fixing tag reference in post_tags migration * fix: remove posttag schema and rename the migrations * feat: retrieving code * problem: cant create post because the user_id is not acceptable by changeset * fix: trying to remake the project * fix/ create post w upsert tags * fix: format and dev settings * pain * feat: create core post finally finished * Update .env.dev * Delete logfile * Update tag.ex * Update post.ex * do not leave unnecessary comments --------- Co-authored-by: Zoey de Souza Pessanha <[email protected]>
peapescarte · Dec 20, 2024 · 8cb6b44 · 8cb6b44
1 parent 737b4ae
commit 8cb6b44
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Showing 5 changed files with 27 additions and 19 deletions.
diff --git a/lib/pescarte/blog/entity/tag.ex b/lib/pescarte/blog/entity/tag.ex
@@ -5,6 +5,7 @@ defmodule Pescarte.Blog.Entity.Tag do
 
   use Pescarte, :model
 
+  alias Pescarte.Blog.Post
   alias Pescarte.Database.Types.PublicId
 
   @type t :: %Tag{nome: binary, id: binary}
@@ -14,6 +15,7 @@ defmodule Pescarte.Blog.Entity.Tag do
   @primary_key {:id, PublicId, autogenerate: true}
   schema "blog_tag" do
     field :nome, :string
+    many_to_many :blog_posts, Post, join_through: "posts_tags"
 
     timestamps()
   end

diff --git a/lib/pescarte/blog/post.ex b/lib/pescarte/blog/post.ex
@@ -2,6 +2,8 @@ defmodule Pescarte.Blog.Post do
   @moduledoc """
   Módulo que define o schema e o changeset para os posts.
   """
+  alias Ecto.Multi
+  alias Pescarte.Blog.Entity.Tag
   alias Pescarte.Database
   alias Pescarte.Database.Repo
   alias Pescarte.Database.Types.PublicId
@@ -16,33 +18,32 @@ defmodule Pescarte.Blog.Post do
           published_at: NaiveDateTime.t(),
           inserted_at: NaiveDateTime.t(),
           updated_at: NaiveDateTime.t(),
-          usuario: Usuario.t(),
-          usuario_id: String.t()
+          usuario: Usuario.t()
         }
 
-  @required_params [:titulo, :conteudo, :link_imagem_capa, :published_at]
+  @required_params [:titulo, :conteudo, :link_imagem_capa, :published_at, :usuario_id]
 
   @primary_key {:id, PublicId, autogenerate: true}
-  schema "posts" do
+  schema "blog_posts" do
     field :titulo, :string
     field :conteudo, :binary
     field :link_imagem_capa, :string
     field :published_at, :naive_datetime
 
-    belongs_to :usuario, Usuario
-
-    # comentado enquanto o PR das tags não é aprovado
-    # many_to_many :tags, Tag, through: [:post_tags, :tag]
+    belongs_to :usuario, Usuario, type: :string
+    many_to_many :blog_tags, Tag, join_through: "posts_tags"
 
     timestamps()
   end
 
-  @spec changeset(t, map) :: changeset
+  @spec changeset(Post.t(), map) :: changeset
   def changeset(post \\ %Post{}, params) do
     post
+    |> Map.put(:published_at, NaiveDateTime.local_now())
     |> cast(params, @required_params)
     |> validate_required(@required_params)
     |> unique_constraint(:titulo)
+    |> foreign_key_constraint(:usuario_id)
   end
 
   @spec get_posts :: list(Post.t()) | Ecto.QueryError
@@ -55,11 +56,15 @@ defmodule Pescarte.Blog.Post do
     Database.fetch(Post, id)
   end
 
-  @spec create_post(Post.t()) :: {:ok, Post.t()} | {:error, Ecto.Changeset.t()}
-  def create_post(params) do
-    %Post{}
-    |> Post.changeset(params)
-    |> Repo.insert()
+  @spec create_post(Map) :: {:ok, Post.t()} | {:error, Ecto.Changeset.t()}
+  def create_post(%{blog_tags: tags} = params) do
+    Multi.new()
+    |> Multi.insert_all(:update_tags, Tag, tags,
+      on_conflict: :replace_all,
+      conflict_target: :nome
+    )
+    |> Multi.insert(:blog_posts, changeset(%Post{}, params))
+    |> Repo.transaction()
   end
 
   @spec delete_post(String.t()) :: {:ok, Post.t()} | {:error, :not_found}

diff --git a/lib/pescarte/identidades/models/usuario.ex b/lib/pescarte/identidades/models/usuario.ex
@@ -45,7 +45,7 @@ defmodule Pescarte.Identidades.Models.Usuario do
 
     belongs_to :contato, Contato, type: :string
 
-    has_many :posts, Post
+    has_many :blog_posts, Post
 
     timestamps()
   end

diff --git a/priv/repo/migrations/20241025203509_create_blog_posts.exs b/priv/repo/migrations/20241025203509_create_blog_posts.exs
@@ -1,10 +1,11 @@
 defmodule Pescarte.Database.Repo.Migrations.CreatePost do
+  alias Pescarte.Database.Types.PublicId
   use Ecto.Migration
 
   def change do
-    create table(:blog_posts, primary_key: false) do
+    create table(:blog_posts, primary_key: :false) do
       add :id, :string, primary_key: true
-      add :user_id, references(:usuario, type: :string), null: false
+      add :usuario_id, references(:usuario, type: :string)
       add :titulo, :string
       add :conteudo, :binary
       add :link_imagem_capa, :string
@@ -14,6 +15,5 @@ defmodule Pescarte.Database.Repo.Migrations.CreatePost do
   end
 
   create unique_index(:blog_posts, :titulo)
-  create index(:blog_posts, :user_id)
 end
 end
diff --git a/...ations/20241025203733_create_post_tag.exs → ...1122115106_create_posts_tags_relation.exs b/...ations/20241025203733_create_post_tag.exs → ...1122115106_create_posts_tags_relation.exs
@@ -2,7 +2,8 @@ defmodule Pescarte.Database.Repo.Migrations.CreatePostTags do
   use Ecto.Migration
 
   def change do
-    create table(:post_tag) do
+    create table(:posts_tags_relation, primary_key: :false) do
+      add :id, :string, primary_key: :true
       add :tag_id, references(:blog_tag, type: :string), null: false
       add :post_id, references(:blog_posts, type: :string), null: false
       timestamps()